Absolutely no contest - Agas cook everything beautifully & the oven space is huge. Yes, expensive to buy, but they last for decades & are more than just a cooker. I no longer own a microwave, tumble drier, electric toaster or kettle. The only thing my iron gets to see is shirts - careful folding & an hr or so on the Aga does the rest!
For the few days of the year when it's really too hot, the Aga can be turned onto low to just tick over - or, if that's still too hot, it's turned off & I'm in the garden with the barbecue & a cold drink....But, the Aga should be sufficiently insulated so that it doesn't throw out lots of heat - some of the older ones seem to leak more heat than others
The biggest problem is getting to the ovens, past the assorted dogs & cats on the floor, and adults leaning on the front rail - my son even used to sit on it!
Go for it MrsJamJam!